110 CARBONIFEROUS OF CAPE BRETON—GILPIN. 
The coal of the third seam to be noticed as worked at the 
Gowrie Colliery is black with a grayish tinge. On fresh sur- 
faces the lustre is bright and pitchy, with very fine lamince 
of jet-like coal, and a good deal of mineral charcoal on the depo- 
sition planes. This coal sometimes exhibits four cleavage planes, 
sometimes holding films of cale spar. Coal tolerably compact, 
with nearly black powder and little visible pyrites. This 
description answers for it throughout the district, except that 
at the Reserve and Bridgeport mines it is more pitchy and 
lustrous. 
The following analyses will serve to show the composition of 
this coal at the Collieries operated on it from Cow Bay to Sydney 
Harbor : 
Gowrie. Caledonia. Reserve.  Lingan. 
NGISGUnCEa acai t cant ee 50 92 pa 15 
Vol. Comb. Matter, slow Coking. 2813 28.62 3421 34.61 
a e - fast r 31.4]).. 30.31 37.60 37.26 
Fixed Carbon, slow Coking .... 66.01 64.02 59.73 61.89 
s a fast “ »rs. 62.73 62:33. 56.34 oem 
Aaa a Pgh al ay oeencasionaia aes a ena 5.36 643 5.54 3.25 
Bul pied jas ol tks Miele eon. 941, 110i 2b 
peciiie Grav tvs averse tenet = 1.31 . 1.33. L265 
The ashes of this coal vary in color from light to deep red. 
The gas values of this seam vary from 8,900 to 9,500 cubic feet 
of gas, of from 13 to 15 candle power, and a good Coke is left. 
The following ultimate analysis of the coal from the Reserve 
inine, made at the Royal School of mines, will prove of interest : 
CarbG@Ins.a. 2.5 usireten ei oreiee © ie Wate restate eee 77.41 
Ely dromemy. ..:3).ts.s servo isters.s isoy eee eae eee 5.47 
ALOR ERE org OA at te LS hye IB ae eee 9,80 
Oxygen. § 
0) 0) MONE eka rraces eer ates eras <i 2.47 
Water o0). 1. Coole see eee oeaetie iene 1.00 
ISM eee ao asd ss ay ee Pie eras oy eae ee es 4,35 
The following analysis of the coke from this mine is from a 
report of Mr. E. D. Peters, on practical tests made by him in ex- 
perimental smeltings of Coxheath copper ore, and it may be re- 
